... , stable value, low power consumption Coating thickness gauge LKTC-1,LKTC-2,LKTC-3,LKTC-4 Product detailed information:LKTC series of ... the pipeline detection telescopic long hilt probe of coating (about 1 meters) Coating thickness gauge LKTC-1,LKTC-2,LKTC-3,LKTC-4